经过对比分析，在松软、含水量大的地层中，气动夯管法施工水平冻结孔比钻进法更具有一定的优越性。
Through contrast and analysis, it was found that this method was obvious superior to drilling method in soft, water content big stratum, the air operated tamping pipe law construction level freeze h…
经过对比分析，在松软、含水量大的地层中，气动夯管法施工水平冻结孔比钻进法更具有一定的优越性。
Through contrast and analysis, it was found that this method was obvious superior to drilling method in soft, water content big stratum, the air operated tamping pipe law construction level freeze h…
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